Mud-chain



G. F. KAUPP.

Mun CHAIN.

APPLICATION FILQ MAY 24. l9l8.

Patented Sept. 2, 1919.

llllhl Illllll GEORGE n. KAUPP, oF ABEnDEnN, lsoufiri DAKOTA.

MUD-CHAIN.

specification of Letters Patent.

Patented Sept. 2, 1919.

Application led May 24, 1918. Serial No. 236,369..

To all 'whom t may concern:

Be it known that I, GEORGE F. KApPr, a citizen of the United States, residlng at Aberdeen, in the county of Brown and State of South Dakota, have invented certain new and useful Improvements in Mud-Chains; and I do hereby declare the followin to be a full, clear, and exact Vdescription o the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to anti skid devices for use upon automobile tires, which are either inflated or solid.

An important object of the invention is to Provide a device of the above mentioned character, which is adapted to prevent rotary and lateral slipping or skidding of the tire or wheel upon which the same is applied.

A further object of the invention is to rovide a device of the above mentioned c aracter, which is so constructed that the saine is self cleaning, to a high de ee.

A furtherobject of the invention is to provide a device of the above mentioned character, which is simple in construction, cheap to manufacture, and convenient in use.

Other objects and advantages of the invention will be a parent during the course of the following escription.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a fra entary side elevation of a device embodying my invention, show in the same in use.

ig. 2 is a transverse section through a. tire and associated elements, the device beinshown applied.

ig. 3 is a central longitudinal sectional view through the device, taken on line 3-3 of Fig. 4, and,

Fig. 4 is a transverse sectional view taken on line 4 4 of Fig. 3.

In the drawin s, wherein for the purpose of illustration is shown a referred embodiment of my invention, t e numeral 5 designates the spokes of a wheel, including a felly 6, having a rim 7 secured thereto, receiving and holding a pneumatic tire 8.

My improved anti skid device is designated as a whole by the numeral 9, and 1s preferably in the form of a casting, formed of a metal having the desired strength, stiffness, Aand lightness, such as steel or the like. The1 device or castin includes an inner longitudinally curved pv ate 10, having transversely spaced radial longitudinal flan es ll,,projecting outwardly, as shown. In t e tread portion of the device, the' plate 10 is provided with transverse flanges 12, serving 4to connect the longitudinal flanges 11. The

flanges 11 and 12 form with the plate 10 pockets or recesses 13 and 14, as shown.

articular attention is called to the fact that the flanges 11 and 12 are tapered in cross section, providing inclined walls 15 and 16, which diverge outwardly, whereby the pockets are tapered in longitudinal and transverse cross section, and increase in length and Width outwardly. This is an important feature of the invention as these pockets become filled with mud or the like and their peculiar construction enables them to be self cleanin to a high degree.

As more c early shown in Fig. 3, the plate 10 is provided at its opposite ends with enlar ements or knuckles 17, having outer inc ined walls 18.

As more clearly shown in Fig. 4, the longitudinal edges 19 of the plate 10, are rounded whereby the device will not injure the tire. The tread portion of my device is provided with teeth 16 to insure the more perfect performance of the same.

Any suitable means may be employed for holding the device upon the tire. AS an illustration of such means I provide chains 20, arranged on opposite sides of the tire and engaging links 21 extendin through apertures 22 in the knuckles I7. The chains may have any suitable fastening means for their ends.

I may use one or more of my devices upon the tire 8. In applying the device to the tire, the plate 10 is placed transversely upon the tread portion thereof, and is suitably curved to conform to the curvature of the tire. The chains are now fastened securely at their ends to retain the device firmly on the tire. The longitudinal flanges 11 prevent rotar slippin or skidding of the tire or whee, while tie transverse flanges 12 prevent lateral slippin or skidding.

It is obvious that m anti skidding device may be made in iferent shapes and sizes, for receiving tires of different shapes and sizes.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred exemple of the same and that varlous changes in the shape, size, and arrangement of parts, may be re sorted to without departing from the spirit of my invention or the scope of the subjolned claim.

Having thus described my invention what I claim 1s:

An device comprising la eur'ved body plete adapted to be 'arranged transversely of 'a We, u plurality of longitudinal outwardly rejecting radial afngee carried by the fwd, plate, plurality of spaced transverse l'fgs eerbied by the plate and connecting the longitudinal Han es, teeth carried by the outer edges of said ongitudinal`and transverse flanges, and means to seoure the body plate to the tire, the teeth of the longitudinal flanges terminatin points spaced considerably from the en s of tlie same to rovide relativel smooth end ortions for t e body plate an longitudinal anges.

In testimony whereof I aix my signature 25 in presence of two witnesses.

vGEORGE F. KAUPP. Witnesses:

F. A. Fmmows, RM' Tomi was e: this ment my n emma m- 'nu mm m1, ay :manning the uummmfener o! retenu, Mmmm, n.

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